Hydroxypropyl Methyl Cellulose (HPMC) is a water-soluble cellulose ether known for its excellent water retention, thickening, and emulsifying properties. It offers good workability and superior sustained-release performance. In construction, it is widely used as a water-retaining and thickening agent in cement mortar and gypsum. In pharmaceuticals, it serves as a matrix material for controlled-release formulations, as well as a film coating agent and binder for tablets. In the food industry, it functions as a thickener and emulsifier. Additionally, in personal care products, it acts as an effective thickener and stabilizer.